Keystones — Bedrock
Five GCSE retrieval questions · 26 January 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 45
Answer: 47 + 45 = 92 -
2. Algebra Substitution
If x = 9, find the value of 2x + 8
Answer: 26 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 13, 19, 2, 6, 10
Answer: 10